Distinguish between prezygotic and postzygotic isolating mechanisms, and provide an example of each.

Q: What are prezygotic and postzygotic barriers? Discuss the concept.

A: The process by which new organisms are formed from parents is referred to as reproduction. Sexual…

Q: Distinguish between a prezygotic isolation mechanism and a postzygotic isolation mechanism.

A: The barriers or differences in geographical, behavioral, physiological, or genetic factors prevent…

Q: What are prezygotic and postzygotic barriers?

A: The phenomenon of evolution of a population to form distinct species is called speciation. A group…

Q: Explain the Prezygotic Isolating Mechanisms ?

A: Prezygotic isolation prevents the fertilization of eggs whereas postzygotic isolation prevents the…

Q: List down the similarities and differences of pre-zygotic and post-zygotic isolation mechanisms

A: Similarities between prezygotic and postzygotic isolation mechanism:- Both prezygotic isolation and…

Q: Explain the stabilizing selection effects on the phenotypic mean and the amount of phenotypic…

A: Stabilizing selection is a type of natural selection in which genetic diversity decreases as the…

Q: frequencies

A: Abstract Behavioral isolation is thought to arise early in speciation due to differential sexual…

Q: Calculate the dominant allele "B" frequency and the recessive allele frequency if the population has…

A: According to Hardy-Weinberg equation, p2+2pq+q2 =1 & p+q =1 Where, p2= genotype frequency of…

Q: Give 3 examples each on plant and animal hybrid species and provide details on parental species, the…

A: Hybridization is the technique of mixing complementary single-stranded DNA or RNA molecules and…

Q: Which of the following mechanisms can cause linkage disequilibrium?   a. Drift   b. Migration…

A: Ans- d. All of the above.

Q: List the barriers that prevent interbreeding and give an example of each.

A: The breeding between two species belonging to the same genus is called interbreeding. It enables the…

Q: What factors determine the amount of variation in a population and in a species?

A: Any kind of changes that enable a change in the genotype and the phenotype of an individual is…

Q: Classify the five causes of extinction.

A: Extinction is the end of a sort of life form or of a gathering of sorts (taxon), generally an animal…

Q: Distinguish between continuous and discontinuous variation in a population, and give some examples…

A: Genetics is a study of genes, heredity, and genetic variation in an organism. Living organisms…

Q: List five factors that can determine whether an equilibrium population is in danger of extinction.

A: An equiibrium population is established when there is no change in the allelic frequencies of the…

Q: briefly explain why there is species variation?

A: Variation is the change in any amount, level, or condition. Genetic variation occurs in the genetic…

Q: Give example of 2 animal hybrid species and provide details on parental species, reason for…

A: Hybrid species and their significance to the society.

Q: Which microevolutionary forces are most associated with an increase in variation within a…

A: Mutation and gene flow are associated with an increase in variation within population.

Q: Explain the disruptive selection effects on the phenotypic mean and the amount of phenotypic…

A: Disruptive selection is the selection that selects the individuals with extreme values rather than…

Q: Explain the significance of reproductive isolating mechanisms and distinguish among the various…

A: Reproductive isolation is a common term used for a set of mechanisms that are put in place to…

Q: Compare and contrast how the bottleneck effect and the founder effect can lead to genetic drift.

A: Genetic drift is the random variations in the number of gene variants in a population. It is the…

Q: Describe what happens to allele frequencies as a result of the bottleneck effect. Discuss the…

A: The bottleneck effect is a significant mechanism through which genetic drift occurs. It would…

Q: Behavioral isolation is considered which type of reproductive barrier? a prezygotic b postzygotic…

A: Reproductive barriers are the mechanisms or processes that prevent the reproduction ,i.e the ability…

Q: Give the major factors that cause changes in the genotype and allele frequencies of a population…

A: Evolutionary mechanisms do not operate in isolation in natural populations. Conservation…

Q: Define inbreeding and briefly describe its effects on a population.

A: In population biology, inbreeding reduces the fitness of the offsprings.

Q: Based on the data in the table below, determine whether mutualism will evolve in Species 1 and…

A: * Mutualism an interaction between two species in which both species will get benifits. *Examples…

Q: Discuss the case of sickle-cell disease as an example of stabilizing selection.

A: Sickle cell disease or sickle cell anaemia is a heritable disease that affects the haemoglobin…

Q: Compare and contrast directional selection and disruptive selection, and provide an example of each.

A: Directional selection is a kind of natural selection in which only a single phenotype is favored…

Q: With suitable examples, explain how mechanisms that do notinvolve adaptive traits can change allele…

A: Allele frequency means frequently appearance of particular allele appears in the population. Change…

Q: Which scenarios are examples of reproductive barriers between closely related species that can cause…

A: - Reproductive barriers are nothing but physical,behavioural,morphologically they are restricted to…

Q: Differentiate between how prezygotic and postzygotic isolating mechanisms lead to reproductive…

A: Reproductive isolation is the inability of a species to breed naturally and with related species.The…

Q: For each of the following scenarios, identify what microevolutionary process is occurring (be as…

A: 1. The evolutionary mechanism that is in charge of this phenomenon is simply gene flow and…

Q: Prezygotic barriers include all of the following, except for

A:

Q: Discuss examples of positive and negative assortative mating in natural populations, human…

A: Assortative mating is a kind of non-random mating. In this type of mating, sexual selection is done…

Q: What are some ways another kind of natural selective felt by a species ?

A: Darwin postulated the theory of evolution by natural selection in the book known as ‘origin of…

Q: Explain, draw, and provide example of directional, stabilizing and disruptive selection.

A: Alteration in the inheritable traits, over long periods, can happen in a population. It is…

Q: What long-term effects can gene flow have on any two populations that are exchanging genes?

A: Gene flow is the movement of alleles of genes from one population to the other. This happens as a…

Q: Distinguish between prezygotic and postzygotic isolationmechanisms.

A: Distinguish between prezygotic and postzygotic isolation mechanisms are :

Q: What is the term for organisms producing different phenotypes due to differences in the environment?…

A: Phenotype is observable traits of an individual which involves height,eye color and type of…

Q: Explain the difference in behaviors of temporally isolated species when it comes to Allopatric vs…

A: a species is a group of related organisms which are capable of interbreeding and produce fertilse…

Q: What other factors besides random mating are necessary for a population for HW equilibrium…

A: Hardy Weinberg Model: H.W model is a null model which provides the baseline of genotype and allele…

Q: Define the following: metapopulation, genetic drift, demographic bottleneck.

A: Metapopulation Metapopulation is known as "Population of population". It is a group of same…

Q: Explain the mechanisms during fertilizatio that ensures species specificity

A: Fertilization is the process of a sperm fusing with an egg cell, which is significantly larger and…

Q: Gene flow can have one effect in the context of a single population, and a different effect in the…

A: Gene flow is the movement of genes or alleles between populations separated by geography. The…

Q: Can divergence of allopatric populationslead to reproductive isolation?

A: Speciation involves the evolution of populations into distinct different populations. Here, the…